If the featured client is unlike the target buyer, start by preserving one representative example. It gives the investigation a concrete reference and makes the eventual correction easier to judge.
Find the likely cause
The story is impressive but irrelevant to the offer.
Treat this as an explanation to verify against the actual work. Look at the input, the relevant decision, and the final result together. If the evidence does not support this diagnosis, investigate the mismatch before applying a convenient but unrelated fix.
Make the targeted correction
Explain the conditions under which the lesson transfers.
A credible case study explains the starting condition, intervention, observed result, and limits of the conclusion.
Check that the repair worked
Check whether the target reader shares the central problem or constraint.
Repeat the check on the final version that the reader or customer will encounter. An approved draft, a preview, and a published result can differ; the acceptance decision should concern the version people actually use.
Prevent the next related failure
A separate issue to watch for is this: aI case studies fabricate impressive results. Remove invented numbers and use only approved project records.
Monitor the useful outcome
Track case-study-assisted qualified conversations and whether readers understand the relevance to their own situation.
Keep a short record of the original symptom, the evidence behind the diagnosis, and the result of the acceptance check. That record makes the solution reusable when the same condition appears again, without assuming that every superficially similar problem has the same cause.